A retired boutique owner built a colorful crescent-shaped home with floor-to-ceiling glass walls tucked into the side of a mountain on the outskirts of Scottsdale, Ariz.

Jane Huey has collected paperweights since she was 13, when her grandmother gave her three of the colorful glass orbs as a gift.

“They’re so intricate and so delicate,” says the now-65-year-old Ms. Huey in her Arizona living room, palming a round paperweight filled with tiny glass flowers. “Like this one here—look how many layers are in that. You can see how much hard work goes into that.”